High temperature furnace for X-ray diffractometer

Claim 1

IN AN X-RAY DIFFRACTOMETER HAVING AN X-RAY SOURCE AND A COUNTER, A FURNACE CONTAINING A SPECIMEN MOUNTED ON A SUPPORTING PLATE, SAID FURNACE COMPRISING: A HEAT RESISTANT BASE MEMBER PROVIDED WITH A RECEPTACLE ADAPTED FOR ACCOMMODATING SAID PLATE, SAID PLATE BEING ACCOMMODATED IN SAID RECEPTACLE WITH THE SPECIMEN THEREIN HAVING A SURFACE ADAPTED FOR BEING IRRADIATED BY X-RAYS FROM SAID X-RAY SOURCE, SAID BASE MEMBER BEING FURTHER PROVIDED WITH GROOVES ADJACENT SAID RECEPTACLE, HEATER COILS IN SAID GROOVES FOR HEATING SAID SPECIMEN FROM A SIDE OF THE PLATE REMOTE FROM THE SURFACE OF THE SPECIMEN TO BE IRRADIATED, FURTHER HEATING COILS ON THE OTHER SIDE OF THE PLATE AND FACING THE SURFACE OF THE SPECIMEN TO BE IRRADIATED, SAID FURTHER HEATING COILS BEING ADAPTED TO FURNISH ADDITIONAL HEAT TO THE SPECIMEN, SAID X-RAY SOURCE BEING OPERATIVELY POSITIONED WITH RESPECT TO SAID SPECIMEN TO IRRADIATE THE SAME WITH X-RAYS, THE FURTHER HEATING COILS BEING IN THE PATH OF THE X-RAYS AND BEING IN SPACED RELATION WITH RESPECT TO ONE ANOTHER TO PERMIT PASSAGE THERETHROUGH OF X-RAYS BOTH FROM SAID SOURCE AND DIFFRACTED FROM SAID SPECIMEN, AND MEANS ON THE BASE MEMBER MAINTAINING SAID FURTHER HEATING COILS IN POSITION.